SAA - Accredited Specialist
Commercial Solar System Sizes
Commercial solar sized around your business power bills. Compare the sizes below, then ask for a free quote.
SAA Accredited
Based in Melton
Commercial Solar for Victoria, Tasmania, NSW and WA
Sunflare Solar designs and installs commercial solar systems for shops, offices, warehouses, farms and factories. A system that matches how your business uses power reduces what you buy from the grid. The right size depends on your roof, your daytime usage and your electricity bills.
The sizes below are a guide to what 5 kW to 100 kW systems typically involve. All figures are approximate. We confirm the real numbers from your bills and a roof assessment before you commit to anything. We install across Victoria, Tasmania, New South Wales and Western Australia.
5 kW Solar System
Small business · about 18–21 kWh per day · about 6,500–7,500 kWh per year (estimate)
Roughly 12 panels (about 440 W each) and 1 commercial-grade inverter.
Around 30–35 m² of usable roof space.
Typically 6,500–7,500 kWh per year, or about 18–21 kWh per day, depending on location, roof angle and shading.
Savings depend on how much power your business uses during the day and what you pay per kWh. We work out your estimate from your actual bills.
10 kW Solar System
Small business · about 36–41 kWh per day · about 13,000–15,000 kWh per year (estimate)
Roughly 23 panels (about 440 W each) and 1 commercial-grade inverter.
Around 60–70 m² of usable roof space.
Typically 13,000–15,000 kWh per year, or about 36–41 kWh per day, depending on location, roof angle and shading.
Savings depend on how much power your business uses during the day and what you pay per kWh. We work out your estimate from your actual bills.
20 kW Solar System
Medium business · about 71–82 kWh per day · about 26,000–30,000 kWh per year (estimate)
Roughly 46 panels (about 440 W each) and 1 commercial-grade inverter.
Around 120–140 m² of usable roof space.
Typically 26,000–30,000 kWh per year, or about 71–82 kWh per day, depending on location, roof angle and shading.
Savings depend on how much power your business uses during the day and what you pay per kWh. We work out your estimate from your actual bills.
30 kW Solar System
Larger business · about 107–123 kWh per day · about 39,000–45,000 kWh per year (estimate)
Roughly 68 panels (about 440 W each) and 1 commercial-grade inverter.
Around 180–210 m² of usable roof space.
Typically 39,000–45,000 kWh per year, or about 107–123 kWh per day, depending on location, roof angle and shading.
Savings depend on how much power your business uses during the day and what you pay per kWh. We work out your estimate from your actual bills.
50 kW Solar System
Large business · about 178–205 kWh per day · about 65,000–75,000 kWh per year (estimate)
Roughly 114 panels (about 440 W each) and 1 or 2 commercial-grade inverters.
Around 300–350 m² of usable roof space.
Typically 65,000–75,000 kWh per year, or about 178–205 kWh per day, depending on location, roof angle and shading.
Savings depend on how much power your business uses during the day and what you pay per kWh. We work out your estimate from your actual bills.
100 kW Solar System
Extra-large business · about 356–411 kWh per day · about 130,000–150,000 kWh per year (estimate)
Roughly 228 panels (about 440 W each) and 2 to 4 commercial-grade inverters.
Around 600–700 m² of usable roof space.
Typically 130,000–150,000 kWh per year, or about 356–411 kWh per day, depending on location, roof angle and shading.
Savings depend on how much power your business uses during the day and what you pay per kWh. We work out your estimate from your actual bills.
Our Process
Commercial solar in 4 simple steps
We review your power bills
Send us a recent bill and tell us about your roof and opening hours.
We design your system
We size the system to your usage and roof, then give you a clear quote.
We install and connect
Our installers fit the system and connect it to your switchboard.
Your bills go down
Your solar produces power during the day, so you buy less from the grid.
Real Customer Reviews
Our Happy Customers
Where We Install Commercial Solar
We install commercial solar across Victoria (Melton, Werribee, Sunbury, Geelong and nearby areas), Tasmania (Hobart, Launceston and nearby areas), New South Wales and Western Australia (Perth and Fremantle). Tell us where your business is and we will confirm we can help.
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